Vocab #1
What is a weak spot in the crust where molten material comes to the surface
Volcano
beneath a volcano magma collects in a pocket
Magma Chamber
a live volcano is called...
active volcano
material formed from the elements oxygen and silicon
silica
lava flows that build a wide, gently sloping mountain
Shield Volcano
What is the major volcanic belt formed by the many volcanoes that rim the Pacific Ocean
Ring of Fire
a long tube in the ground that connects the magma chamber to Earth's surface
Volcanic Pipe
a sleeping volcano is called...
dormant
fast moving hot lava
pahoehoe
a steep, cone-shaped hill or mountain
cindercone volcano
Volcanoes that create a string of islands
Island Arc
molten rock and gas leave the volcano through an opening
vent
a dead volcano is called...
extinct
lava that is cooler and slower moving
aa
tall cone-shaped mountain in which layers of lava alternate with layers of ash
composite volcano
an area where magma from deep within the mantle melts through the crust like a blow torch
hot spot
area covered by lava as it pours out of a vent
lava flow
groundwater that is heated by nearby magma and it rises to the surface and collects in a natural pool
hot spring
explosive eruptions hurls out ash, cinders, and bombs as well as gases
pyroclastic flow
What is 3 times 4?
12
True or False Hawaii is made from volcanoes
True
bowl shaped area that may form at the top of a volcano around the volcano's central vent
crater
a fountain of water and steam that erupts from the ground
geyser
water that is heated by magma which provides clean, reliable energy to use
geothermal energy
90 divided by 10
9